The effect of pre-setting pressure on the flexural strength and fracture toughness of SIFCON during the setting phase

Ipek M., Aksu M., Yilmaz K., Uysal M.

CONSTRUCTION AND BUILDING MATERIALS, cilt.66, ss.515-521, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 66
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.conbuildmat.2014.04.107
  • Dergi Adı: CONSTRUCTION AND BUILDING MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.515-521
  • Anahtar Kelimeler: SIFCON, Fibre, Pre-setting pressure, Flexural strength, Fracture toughness, REACTIVE POWDER CONCRETE, STEEL FIBER, SILICA FUME
  • Yıldız Teknik Üniversitesi Adresli: Hayır

Özet

Slurry Infiltrated Fibre Concrete (SIFCON) is a special type of steel fibre-reinforced cement composite with superior mechanical properties, including compressive, tensile, shear and flexural strengths with extraordinary toughness values. In this study, the effects of pre-setting the pressures of SIFCON were examined. The fresh (plastic) SIFCON samples were put into a specified beam mould. Six different (Control (without pressure), 3, 6, 9, 12 and 15 MPa) pre-setting pressures were applied. In this study, the maximum flexure strength was observed to be 67.54 MPa under 15 MPa pre-setting pressure. According to the without-pressure control, the flexure strength was improved by 43.5% at a 15 MPa pre-setting pressure. In addition, the fracture toughness was increased by approximately 46% with a 6 MPa presetting pressure. With the pre-setting pressure, the application can decrease the element thickness or the fibre proportion use, which is the most costly item. (C) 2014 Elsevier Ltd. All rights reserved.